Vehicle-spring



(No Model.)

N. NILSON.

VEHICLE SPRING.

No.252g246. Patented Jan. 10,1882,

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of which rest in UNITED STATES PATENT OFFICE.

NILS NILSON, F MAPLE PLAIN, MINNESOTA.

VEHICLE-SPRING.

SPECIFICATION forming part of Letters Patent No. 252,246, dated. January10, 1882.

Application filed September 12, 1881. (No model.)

To all whom ittmcy concern:

Be it known that I, NILs NILsoN, of Maple Plain, in the county ofHennepin and State of Minnesota, have in vented certain new and usefulImprovementsin Vehicle-Springs; and I do hereby declare that thefollowing is a full, clear, and exactdescription of the invention, whichwill enable others skilled in the art towhich it appertains to make anduse the same, reference beinghad to theaccompanyingdrawings,which formapart of this specification, and in which Figure 1 is a side view of awagon-box pro vided with my improved springs. Fig. 2 is a bottom plan ofthe same. Fig. 3 is a detail view, on an"enlarged scale, of one of thesprings, with its auxiliary coiled spring and tubular elastic cushion orsleeve; and Fig. 4 is a longitudinal section of the spring-bar, sleeve,and spring shown in Fig. 3.

Similar letters of reference indicate correspondin g parts in all thefigures.

My invention has relation to springs for vehicles, and contemplatescertain improvements in the construction of the same, as hereinaftermore fully set forth, and particularly pointed out in the claim.

In the annexed sheet of drawings, the letter B represents the frontspring-bar, the ends bearings G G, which are affixcd to the under sideof and project out laterally from the wagonbox A. Around the outer endof this bar,just inside of its bearings, are doubled the springs, eachof which consists of a lower leaf, D, and an upper leaf, D, doubled uponthe former so as to form an eye, d, clamping the end of bar B. Lateralmotion of the spring is prevented by the bearings U and washers a,secured upon the bar, one ateach end, and the springs D D are rigidlyaffixed upon their respective ends of the bar, so that the latter willmove or give with them. To control this yielding motion of thespring-bar B, I employ two coiled springs,

E E, one at each side, and one end of each of which is secured in thebottom of the wagonbox, as shown at 0, while the other or outer end issecured in the washer c, which is fastened rigidly upon the bar, so asto move withit.

By reference to Fig. f the drawings it will be seen that I provide eachend of the bar, around which spring E is coiled, first with a metallictube or bushing, (shown at 01,) which is in turn inserted through a tubeor sleeve, f, of india-rubber or other elastic material, and which formsan elastic cushion or packing for the spring E wound around it.

By this construction and combination of the spring-bar B, elasticpacking j, coiled springs E, and leaf-spring D D it will be seen that Iform a compound spring composed of the elements D D, E, and f, becausethe tubular packingf will also act in the nature of a spring in respectof the coiled spring E, the contraction of which it does, of course,resist; and this compound spring, while very strong and durable, will befound very easy and sensitive and greatly conducive to the comfort ofthe occupants of the vehicle in riding over rough roads. Having thusdescribed my invention, I claim and desire to secure by Letters Patentof the United Statesv The compound vehicle-spring composed of the curvedleafspring D D and coiled spring E, in combination with thespring-bearings O and bar B, provided with the washer 0, bushing (7, andtubular elastic packing f, as set forth.

In testimony that I claim the foregoing as my own I have hereuntoaffixed my signature in presence of two witnesses.

NILS NILSON. Witnesses:

A. Y. EATON, G. W. SMITH.

